<template>
   <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 1. 为ECharts准备一个具备大小（宽高）的Dom -->
        <el-card>
            <div id="main" style="width: 750px;height:400px;"></div>
        </el-card>
   </div>
</template>
<script>
import _ from 'lodash'
export default {
  data() {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  methods: {},
  async mounted() {
      // 2.基于准备好的dom，初始化echarts实例
      let myChart = this.$echarts.init(document.getElementById('main'))
      // 发送ajax请求获取数据
      const { data: res } = await this.$http.get('reports/type/1')
      // 3.指定图表的配置项和数据
      const result = _.merge(res.data, this.options)
      // 4.使用刚指定的配置项和数据显示图表。
      myChart.setOption(result)
      console.log(res)
  }
}
</script>

<style lang="less" scoped></style>